View Poll Results: 221 S 550 does your brakes squeal?
yes
3
33.33%
NO
6
66.67%
What have you done about it?
0
0%
Voters: 9. You may not vote on this poll
squeaking brakes
08-09-2016, 12:32 PM
#1
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2013 S 550 4/matic
squeaking brakes
Is there anyone out there with brakes that screech!!!!! 2013 S550 4 matic. I have hade MB replace pads and rotors... Does not help! Anyone with info on MB callbacks??? Brutal!
08-10-2016, 03:47 AM
#2
Senior Member
Yes. My brakes squeal every now and then depending on how hard I press on the brakes. Annoys the hell out of me especially on a car like this. I had the brake pads and rotors replaced by the MB dealer over twelve months ago and should've taken it back to get the issue rectified sooner but I forgot about the 12 month/12000 mile warranty on repairs.
08-11-2016, 10:51 PM
#4
No squeal here.
If yours are replaced and squeal that means they are not bedded correctly. The initial transfer of pad material to rotor never happened. This is common. Do the following:
Brake a few times casually to get rotors warmed up.
Perform three threshold (no abs) brakes from 30 to 15mph
Perform three threshold brakes from 45- 50 to 15 mph
Perform three threshold brakes from 65 to 15 mph
Drive for 10 minutes (ideally longer)
All of the above should be done without coming to a stop. Very important.
Drive for 10-15 minutes to let the rotors cool off.
Again- do not come to a stop at any point in the above exercise.
If this does not result in quiet brakes your caliper springs need to be tightened. Somebody rough handled them during removal or installation.
If yours are replaced and squeal that means they are not bedded correctly. The initial transfer of pad material to rotor never happened. This is common. Do the following:
Brake a few times casually to get rotors warmed up.
Perform three threshold (no abs) brakes from 30 to 15mph
Perform three threshold brakes from 45- 50 to 15 mph
Perform three threshold brakes from 65 to 15 mph
Drive for 10 minutes (ideally longer)
All of the above should be done without coming to a stop. Very important.
Drive for 10-15 minutes to let the rotors cool off.
Again- do not come to a stop at any point in the above exercise.
If this does not result in quiet brakes your caliper springs need to be tightened. Somebody rough handled them during removal or installation.
Last edited by alx; 08-11-2016 at 11:02 PM.
09-29-2016, 03:11 PM
#5
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2012 E350
This is strictly my $.02. Some of you get the squealing simply because MB prefers to use only semi-metallic brake pads. The major drawbacks of this style pad is lots of brake dust on the wheels and a higher chance of squealing. The benefits of semi-metallic is that they work really well (i.e. stopping power & heat dissipation regardless of environment).
I personally prefer ceramic brake pads on my cars. They produce significantly less dust and have a much lower chance of squealing.
The catch is that if you are taking your car to the dealer for a brake job they WILL use MB OEM pads. If you want ceramics you might be able to talk your SA into it but I doubt it. However, an indy will do what you ask... or else you just DIY your brakes.
I buy most of my parts from Rock Auto. They only have 1 manufacturer for ceramic pads listed which is Akebono. I've seen several other folks on these forums mention them. There might be other manufacturers out there but I haven't come across them.
For more info on the differences between semi-metallic and ceramic pads check out http://www.autoanything.com/brakes/t...-metallic.aspx
I personally prefer ceramic brake pads on my cars. They produce significantly less dust and have a much lower chance of squealing.
The catch is that if you are taking your car to the dealer for a brake job they WILL use MB OEM pads. If you want ceramics you might be able to talk your SA into it but I doubt it. However, an indy will do what you ask... or else you just DIY your brakes.
I buy most of my parts from Rock Auto. They only have 1 manufacturer for ceramic pads listed which is Akebono. I've seen several other folks on these forums mention them. There might be other manufacturers out there but I haven't come across them.
For more info on the differences between semi-metallic and ceramic pads check out http://www.autoanything.com/brakes/t...-metallic.aspx
